Sony TRINITRON KV-20FV10 Service Manual page 25
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Also See for TRINITRON KV-20FV10:
- Operating instructions manual (41 pages) ,
- Operating instructions manual (38 pages) ,
- Operating instructions manual (41 pages)
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3. Activate the Service Adjustment Mode.
4. Set both GON and BON items. Using
set each to the following values. Leave RON set to 1.
SERVICE
RON
R ON:
ON
(1)
G ON:
OFF (0)
B ON:
OFF (0)
5. Select the DCOL item and set it to 0.
6. Connect an oscilloscope probe to C board, CN1752 pin
TP47R (RED OUT).
7. Select RDRV with
and
8. Adjust the value of RDRV with
1.73 ± 0.05 Vp-p.
1.85 ± 0.05 Vp-p (KV-25FV10A ONLY).
White
1.85 ± 0.05 Vp-p (KV-25FV10A ONLY)
1.73 ± 0.05 Vp-p
Black
9. Reset the item DCOL to 1.
10. Reset GON and BON values to 1.
R ON:
ON
(1)
G ON:
ON
(1)
B ON:
ON
(1)
11. Reset Picture, Color, and Bright to normal values:
PICTURE:
MAX
COLOR:
CENTER
BRIGHT:
CENTER
12. Press
then
Display Position Adjustment (DISP)
1. Input a color-bar signal.
2. Set to Service Adjustment Mode.
3. Select DISP with
and
4. Adjust values of DISP with
to the center.
5. Write to memory by pressing
6. Check to see if the text is displayed on the screen.
SERVICE
Sub Bright Adjustment (SBRT)
1. Input a monoscope signal.
2. Activate the Service Adjustment Mode.
3. Set the PICTURE and BRIGHTNESS to minimum.
and
;
1
1: ON
0: OFF
.
and
for
to save into the memory.
.
and
to adjust characters
then
.
DISP
15
— 25 —
KV-20FV10/21FV10/21FV10C/25FV10A
4. Select the SBRT item with
5. Adjust the values of SBRT with
visible crosshatch.
6. Press
then
Sub Hue, Sub Color Adjustment (SHUE, SCOL)
1. Input a color-bar signal.
2. Activate the Service Adjustment Mode.
3. Select the DCOL item and set the value to 0.
4. Connect an oscilloscope probe to C Board, CN1752
Pin
or TP47b (BLUE OUT).
5. Select the SHUE and SCOL item with
6. While showing the SHUE item, adjust the waveform with
and
until the second and third bars show the same level
(V2 = V3 ± 0.15 Vp-p).
7. While showing the SCOL item, adjust the waveform with
and
until the first and fourth bars show the same level (V1
= V4 ± 0.15 Vp-p).
8. KV-25FV10A ONLY - Input RF PAL-M color bar and repeat
steps 1-7.
V1
V2 V3
8. Select the DCOL item and reset to 1.
9. Press
then
V. Size Adjustment (VSIZ)
1. Input a crosshatch signal.
2. Activate the Service Adjustment Mode.
3. Select the VSIZ item with
4. Adjust value of VPOS with
center.
5. Press
then
V. Center Adjustment (VPOS)
Perform this adjustment after performing H. Frequency
(Free Run) check.
1. Input a crosshatch signal.
2. Activate the Service Adjustment Mode.
3. Select the VPOS item with
4. Adjust value of VPOS with
center.
5. Press
then
and
.
and
to obtain a faintly
to save into the memory.
and
.
V4
to save into the memory.
and
.
and
for the best vertical
to save into the memory.
and
.
and
for the best vertical
to save into the memory.
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